Thermocouple pocket



ug.2; 1932. B WES 1 869,788

THERMOCOUPLE POCKET Filed Sept. 20, 1950 '3nnentor Patented Aug. 2, 1932 ("UNITED STA'E'ES PATENT GF 1 1 urnnmvzocourm ]?OGKET Application fi1ed September 20, 1930. Serial No. 483369@ This invention .relates to a thermocouple pocket and has for itsobj ect to provide a construction simple in parts and more efficient in use than thoseheretofore proposed. YVithlthese sind other objects in view the inyentionresideseinthe novel details of coustruction and combinations of parts as will be disclos d morefully hereinafter and particularly pointed out in the claims.

&Referripg tthe accompanying drawing forming apart of this specification in which like numerals cleSignatelike parts in all the views,- 1

Fig.1is a side elevational view partly in section illustrating the construction 0f the thermocople pocket and its securement Fig. 2 is a transverse sectional view taken aspn the line 22 0I" Fig. l and looking in the directi0n cf the arrows; and Fig. 3 iSa diagrammatic view illustrting the connetion 0f the thermoeouple pocket to the deviee with which it is associated.

- This invention ineludes a housing for a hezttsensitive element used to measure the temperature of material in transit, which element if unprotected would be damagedby inictiqna l contact --with andimpact 0f the movjng material. According to this inventi0i1 the element, hereinafter referred to as a thermocouple, ie not placed in the direct flovv of the material but is placed in a shunt cuprenl: thereof whereby the thermocouple is notgsubje)cted t0 the full force of the majorportion of the moving material. 1

More pztrticularly referringto Fig. 3 there is disclosed a diagrammatic representation oft an appapatus fordrying ancl heating mate- Iial such as shown anddescribed in the U. S. Letters Patent #1,641,108 grantecl August 30, 1927 to Lawrence B. West. Accor'ding to the disclosure of sajid Patent the wet raw ma- -t(e'riztlis admitted through -ahopper 53 tothe spa ce between outer and inner heating drums 11 1 an(l 13 respectii ely* the material being Qe}gilvanced}in said space,in separate compart- Ihents toward the rig lit hal1d endl ofthe drums as seen ii1:said figure, where it is. de

flectecl Joy the cone 22 into the-interior of the inner drum 13 in .Which latter it is repeatedly cascadecl across the space of sai cl1um and advanced toward the left band end thereof to be ultin'1ately discharged through the chute 3. Hot gases from a furnace 1 pass through the inner drum, thence .around the cone 22 andthrough the spaces between the inner and outer drums, eventually reaching the stack 5, the clirection of fiow of Said gases at all times being countet to the flow of the material Whereby the latter is subjected to increased -heat during the decrease of its moisture contact, as a result 0f which the material is quite hot andperfectly dry when it is discharged. 1

The discharge ahnte 3 leadsdownwardly to conduct the dried material to an elevator 4 55 provided with buckets 6 moving in the di rection inclicated in Fig. l, wher'eby said material may be conveyed to an elevated storage bin not shoyvnsaid elevator being enclosed in a housing 7 joined With said chute.

The pitch of the chute 3 is such as' to adequately cause the hot material from the drier to gravitate to the elevator 4.

In operation the material slides through the chute at such a rate that, in a comparatively short time, the thermocouple inserted directly in the path ofthe material would be damaged if n0t actually broken, necessitating frequent replackements.

According t0 thisinvent1on the bottbin of the chute 3 isproVided with a protectiv'e lin-- ing 8 which may be made replaceable, the ahnte, being of any desired cross secti0nal shape, it being shown 'rectangular in Fig. 2.

The bottom all of the ahnte adjacent the 3 elevator housing 7 is provided with an operii'ng 9 of relativelyappreciable size, and. the lining 8 is' p'rovideclwith an opening 10 whose edges are eoncent1yic with or parallel tol the edges 0f the opening 9, the opening 10 being 'opening 9 when the plateis in position. "1A box-like chamber 16 is secnred through .fiai1ges 17 t the under side of the chute by the bolts 14, said chamber being of a size to register with the opening 9. The chamber is prefera bly reccangular andprovided in.- teriorly;With one er mote brackets.or saddles 18 adapoed es ab 19 to support the thermocouple 20isubstantially'centrally or axially 0f the chzunber. One Gndwall Of"th6 chamb81 is suitably provided es at 21 with1neans for. securing the thermocciuple with Tespect is apertured tecommunicafw with a relief conduit 23 whose other end discherges into thehdusing.7 oftheeievatoi= 4.

The' electricai conductoi leads of the;the r motzouple pass as.-by the czible 24 to any su1table. reeording instrument diagrammatically indicated 21131 25;

In. operation. the heate'd 1naterial such as' sand, gravel5. on finestone asses downthe ahnte. 3:f120111 .the drier, but as the material passes ov.er theplate 12-3 a portion there0f sifts.through: the. perforations. 15 and falls into. thethermocouple Pocket er ehamber 16 filling the.latter about as indicated in the dmwingfi, whereby substantially: the greater portion of the.thermocouph will':becovered byxthe.siftedh1aterial which hassubstantially the. .same temperatu re as 1 ehe material in the chute. The sifted material graduallypasses outyOf-the chamber16 through ihe conduit23 and j eins the main ortion of thematerial in the b otto1n ofitheelevztorhousing 7.

It= is,obivioi1s .-thabthose sk-illed in the a'rt Y may variy t-he details of 'construetion asweil asari1angementsof parts withou tdeparting from the spirit ofthednwention, and therefore it: iSI1O desired to bedimited to the f01iegoingexeptas maybereqnired by'the clzums.

- What-isclaimedf is: l 1

1. Ina deviceof the-character des'cribed th e combination of- 2 eontai-I1er withmo'ving material' gtherei-n, 0ne wal1 Qf seid Container proiv ided with= a-= pli1rality of spacednpertures thfouglg which-a=-porbion of said mate- 1 1al rmay pziss meansform1ng a chamber suprond1ng=sa1d apertures t0 rece 1Ve= Saldpo1-tion; siemperaizure recordingde'viee inciudi nge heau sensitive element, i;he latter disppsed in; seid, chambei= and exfending intosaid pntion; and ther6 being an outlet froni the =combination of a container Wii3h meving ma tex;ial therein; erf'orated meahs in a- C011- tainer Wall through whieh a portion of -said material may pass; means forming a cha m-' bel below seid means to receive seid portioi1; a temperature recording device including a heat Sensitive eiementi the iatter disposed in seid cha1nber and extendir'ig int0 seid pertion; and there being an out1et from sa1d chamber for seid portion.

3. In a device of 1:he character described the combinacion of a container with moving material therein; pe'rforated and, reinovable 1neans in a contziiner weil through which a portion 0f said material may pass; means forminga ehaunber below said rne2insto receive saidportion; a temperature recording demce 1I1CllldlIlg a heat sens1t1ve element,

*the* lattr disposed in s2iidchamber and extendingincoseid portion; and there being an -'ou'tl t 'fioiiisaid chamber f01' said portion.

t0 the chamber, and the -opposi te end w a l1 4. In a device o f t he. character described b the combination of a ehnte for heated material, thebottom wx1l oi said ='chute provided y With an opening; a perforatedmember fit'- fing over:said opening and through whiehe sensitive element, 1'she 1atter dispo sed in Said chamber and extending into seid portion=; and there being an outlet-irom said chamber adaptedwto eonduct seid portion'backi 130 said materiell. 1 1 7 5. In a device ofthe character deserib'ed the combination 015 a ahnte for heatedmaterizi1, the b0ttom all 0f' seid chute=provided Wih an opening; a perforated niember-fitting over seid opening'and through which apor tion 0f said maneri'al 1nay pass; meansforming a cha1nber -below s2iid opening 'andsaiid member-to receive said portioi1; a temperafiure recotdin-g device incli1ding V a heat fse'nsitive element, the latter dispdsed;i'n;said chambei and extending int'0 Seid portion; and therebeing an outlet -fro1n sziidch'amber including a Conduit for nonveying said=pr-" tion-ba'ck to seid material.

6. In 2 device 0f ehe 'Chara'cter deseribed the combiha tion ofuchlite; means forminga chamber'secured to s'aidchutega perforated member-separatingsai'd 'chute zindsaid cham: her; and 'a thermoc0uple in-said chamber;

7. In a deviceof the charwter describ'iad the cornbin'ation of a ahnte establishing amainstream of mateiril; a by-pass condi1it includirig a Chamber estabiishin'g =a shnnt st1*eam' of a Portion ofa'id matefizd; and

a thermocouple in said shunt sream.

8.I1 1=a device o'fthe ehafacter deseribed:

the co1nbintibn of:a i-chute escz iblishing' a mein streun' o f material a by-pass conduit including 21 l Charnb er estziblishinga Es hunt strea1n ofnportion ofsaid 11131381ifl1, seid chamber sec ured*to said Chutewith a pere foiinated Wall-therebeween ;a b1acket in said chamb'er; and zi thermocouple supp'orted 0n 'said bfacket n e'zitening in'to said shunt stream.

9. In a deviee of the character described -the combination of a ahnte establishing a main stream of material; a. by-pass conduit including -a chamber establishing a shunt strea m of a ortion of said material, said chamber secured to said ahnte with a perjfdrated wall therebetween; a bracket in said chamber; and a thermocouple supported 011 said bracket in heat conducting relation t0 said Portion.

In testimony whereof I aflix" 1i1y Signatur.

- LAWRENCE B. WEST.- 

